There are many competitors for the Norton Antivirus brand. Some of the more notable ones are McAfee, a pay antivirus program, and Avast, a free antivirus program available for download.

An advantage is that Norton is a leader in antivirus software and stops most viruses before they have a chance to harm your computer.

A disadvantage is that Norton is costly and free antivirus programs are available that do almost, if not just as well.

You can purchase a copy of Norton Antivirus online at the Amazon website. Once on the page, type "Norton Antivirus" into the search field at the top of the page and press enter to bring up the item.

Norton Antivirus is the #1 ranked security system worldwide. They have a 30-day free trial at anyone who is interested's disposal, but don't take my word for it, try Norton Antivirus today.